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Ct600 forms showing one only

Posted by Burhan Shahid 3 Jan 2026 at 13:29
Hi, I’ve filled in all the accounts relevant for ct600. My period is extended which means I require two ct600 forms, however in the preview I can only see one & not two separate ones.

Thank you

2 Comments

T
Tim Fouracre Staff 3 Jan 2026 at 14:48
Thanks for reaching out. Your extended accounting period (06/04/2024 to 30/04/2025 - 389 days) has been correctly detected as requiring two CT600 submissions.

You should see an "Extended Accounting Period" info box on the preview page showing:

- Period 1: 06/04/2024 to 05/04/2025 (366 days)

- Period 2: 06/04/2025 to 30/04/2025 (25 days)

While the preview shows one "Submit Corporation Tax" button, when you click it, TinyTax will automatically submit both CT600 returns to HMRC. The two Tax Computation documents (visible in preview) show the tax breakdown for each period.

If you're not seeing the Extended Accounting Period info box, please try refreshing the preview page. Let me know if you have any other questions!
B
Burhan Shahid 3 Jan 2026 at 15:05
Perfect, the extended period info box was there. Thank you.

I have submitted, it just says awaiting hmrc